1. Use the Windows XP Setup disks to restart the computer.
2. At the Welcome to Setup screen, press R to repair the Windows installation.
3. Press C to repair the Windows XP installation by using the Recovery Console.
4. Type the number that corresponds to the Windows XP installation that you want to repair, and then press ENTER. For example, type 1, and then press ENTER.
5. Type the Administrator password, and then press ENTER.
6. Type map, and then press ENTER. Note the drive letter that is assigned to the CD-ROM drive that contains the Windows XP CD-ROM.
7. Type the following commands, pressing ENTER after you type each one, where drive is the drive letter that you typed in step 4 .

copy drive:i386ntldr c:

copy drive:i386ntdetect.com c:

If you are prompted to overwrite the file, type y, and then press ENTER.

NOTE: In these commands, there is a space between the ntldr and c:, and between ntdetect.com and c:.